I have a Linux server with about 20 users. They were using wall command which is annoying. I have root permissions and still want to be able to use it myself. But, how can I restrict normal users from using the Linux wall command?

Personally, I would find out why they are using wall, and then ask them to use a more appropriate service such as write or talk. If they are not willing to comply, then BOFH. Technology is not an answer in these cases.

May be the person who use wall command just want to have some fun without noticed that the rest users suffered. Most of the user don't know about linux much , so they cannot deny message by themselve.
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isaraJan 4 '12 at 14:09